Four rounded corners 26.5 mm plus 1.0, minus 0.0 (1.0433 in.) radius
A color free item of transparent or translucent material, usually optical glass, having specific light dispersive and refractive properties. This item must have two plane-parallel surfaces and is designed for use in an optical instrument to provide a barrier to foreign matter and/or permit light transmission in or to the optical system.
Classification: Military equipments not identified by kind
NSN 6220-00-601-6749
NSN 5996-01-459-8014
NSN 5998-01-102-2317
NSN 5920-01-398-1626
NSN 5990-01-093-0836
NSN 6130-00-442-4005
NSN 6145-01-445-9788
NSN 7035-01-583-4016
NSN 5996-01-068-4469
NSN 5950-00-226-0207
NSN 5975-01-227-5896
NSN 5975-01-287-2155